search for: populate_physmap

...ti-page allocations are permitted is unnecessary for PoD population operations. Instead, the (loop invariant) check added for addressing XSA-31 can be moved here. Signed-off-by: Jan Beulich <jbeulich@suse.com> --- a/xen/common/memory.c +++ b/xen/common/memory.c @@ -99,7 +99,8 @@ static void populate_physmap(struct memo a->nr_extents-1) ) return; - if ( !multipage_allocation_permitted(current->domain, a->extent_order) ) + if ( a->memflags & MEMF_populate_on_demand ? a->extent_order > MAX_ORDER : + !multipage_allocation...

...c @@ -28,6 +28,9 @@ #include <public/memory.h> #include <xsm/xsm.h> #include <xen/trace.h> +#ifdef CONFIG_ARM +#include <asm/platform.h> +#endif struct memop_args { /* INPUT */ @@ -90,7 +93,7 @@ static void increase_reservation(struct memop_args *a) static void populate_physmap(struct memop_args *a) { - struct page_info *page; + struct page_info *page = NULL; unsigned long i, j; xen_pfn_t gpfn, mfn; struct domain *d = a->domain; @@ -122,7 +125,33 @@ static void populate_physmap(struct memop_args *a) } else { -...

To make use of the new node aware memop hypercall, the xc_domain_memory_populate_physmap function is extended by a node parameter. Passing XENMEM_DEFAULT_NODE mimics the current behavior. Signed-off-by: Andre Przywara <andre.przywara@amd.com> -- Andre Przywara AMD-Operating System Research Center (OSRC), Dresden, Germany Tel: +49 351 277-84917 ----to satisfy European Law for b...

Defines XENMEM subop hypercall for PV vNUMA enabled guests and data structures that provide vNUMA topology information from per-domain vnuma topology build info. Signed-off-by: Elena Ufimtseva <ufimtseva@gmail.com> --- Changes since RFC v2: - fixed code style; - the memory copying in hypercall happens in one go for arrays; - fixed error codes logic; --- xen/common/domain.c | 10

I am confused with a problem: I have a blade with 64 physical CPUs and 64G physical RAM, and defined only one VM with 1 CPU and 40G RAM. For the first time I started the VM, it just took 3s, But for the second starting it took 30s. After studied it by printing log, I have located a place in the hypervisor where cost too much time, occupied 98% of the whole starting time. xen/common/page_alloc.c

Attached are the patches to support super page with EPT. We only support 2M size. And shadow may still work fine with 4K pages. The patches can be split into 3 parts. Apply order is as attached. tool.diff To allocate 2M physical contiguous memory in guest except the first 2M and the last 2M. The first 2M covers special memory, and Xen use the last few pages in guest memory to do special

...translate_gpfn_list: 232 0xffff830000114c78 translate_gpfn_list: 232 0xffff830000115b27 do_memory_op: 232 0xffff830000116067 do_memory_op: 232 0xffff8300001af923 vmx_assist: 224 0xffff8300001134a8 populate_physmap: 216 0xffff8300001137d3 populate_physmap: 216 0xffff83000012a742 guest_console_write: 216 0xffff83000012a8de guest_console_write: 216 0xffff83000011009a do_grant_table_op: 208 0xffff8300001343e1 arch_set_info_gu...

Hi all, Can some one tell me where phys_to_machine_mapping is being initialized for a domU having paging mode set to PG_translate. I see that, populate_physmap() after calling __alloc_xen_heap_pages only updates the machine_to_physmap but how is the mfn for the allocated page being updated/set for phys_to_machine_mapping?? I see that phys_to_machine_mapping is a #defined to RO_MPT_VIRT_START which inturn is defined as PML4_ADDR(256).. what is this?? i...

...neral it could be generic however I do not know it will be useful for others. If this function would be accepted by mm/memory_hotplug.c maintainers we could move it there. I removed from original add_memory funtion resource allocation (and deallocation after error), which must be done before XENMEM_populate_physmap in Xen. xen_add_memory is called after physmap is fully populated. If you have a questions please drop me a line. Daniel Signed-off-by: Daniel Kiper <dkiper@net-space.pl> --- arch/x86/Kconfig | 2 +- drivers/base/memory.c | 23 --- drivers/xen/Kconfig...

2013/10/29, mail fetch <fetchmail.0104@gmail.com>: > Hi all, > > I just saw a know bug from wiki that network doesn''t work in guest in > arndale board : > > Network doesn''t work in the guest > > Contact: julien.grall@citrix.com > Status: In progress > Description: Network doesn''t work in the guest when an ehternet cable is > plugged

Hi, I''ve added some preliminary support for VT-d for paravirtualized guests. This must be enabled using an ''iommu_pv'' boot parameter (disabled by default). I''ve added some python bindigs to allow xend to assign PCI devices to IOMMU for PV guests. For HVM guests this is handled in ioemu. Not sure if it makes sense to handle both cases in one place. The

...ion: The goal of this hypercall is to attempt to atomically and very quickly determine if there are sufficient pages available in the system and, if so, "set aside" that quantity of pages for future allocations by that domain. Unlike an existing hypercall such as increase_reservation or populate_physmap, specific physical pageframes are not assigned to the domain because this cannot be done sufficiently quickly (especially for very large allocations in an arbitrarily fragmented system) and so the existing mechanisms result in classic time-of-check-time-of-use (TOCTOU) races. One can think of clai...

Hi there, We are using latest version of XCP on 6 hosts. While issuing VM.start or VM.start_on xmlrpc functional call , it says : {''Status'': ''Failure'', ''ErrorDescription'': [''SESSION_INVALID'', ''OpaqueRef:cfb6df14-387d-40a1-cc27-d5962cba7712'']} However if I put VM.start in a loop maybe after